1 /* SPDX-License-Identifier: BSD-2-Clause */ 2 /* 3 * Copyright (c) 2016, Linaro Limited 4 * Copyright (c) 2014, STMicroelectronics International N.V. 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions are met: 9 * 10 * 1. Redistributions of source code must retain the above copyright notice, 11 * this list of conditions and the following disclaimer. 12 * 13 * 2. Redistributions in binary form must reproduce the above copyright notice, 14 * this list of conditions and the following disclaimer in the documentation 15 * and/or other materials provided with the distribution. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 18 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE 21 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 22 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 23 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 24 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 25 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 26 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 27 * POSSIBILITY OF SUCH DAMAGE. 28 */ 29 30 #ifndef __DRIVERS_GIC_H 31 #define __DRIVERS_GIC_H 32 #include <types_ext.h> 33 #include <kernel/interrupt.h> 34 35 #define GIC_DIST_REG_SIZE 0x10000 36 #define GIC_CPU_REG_SIZE 0x10000 37 38 struct gic_data { 39 vaddr_t gicc_base; 40 vaddr_t gicd_base; 41 size_t max_it; 42 struct itr_chip chip; 43 }; 44 45 /* 46 * The two gic_init_* functions initializes the struct gic_data which is 47 * then used by the other functions. 48 */ 49 50 void gic_init(struct gic_data *gd, vaddr_t gicc_base, vaddr_t gicd_base); 51 /* initial base address only */ 52 void gic_init_base_addr(struct gic_data *gd, vaddr_t gicc_base, 53 vaddr_t gicd_base); 54 /* initial cpu if only, mainly use for secondary cpu setup cpu interface */ 55 void gic_cpu_init(struct gic_data *gd); 56 57 void gic_it_handle(struct gic_data *gd); 58 59 void gic_dump_state(struct gic_data *gd); 60 #endif /*__DRIVERS_GIC_H*/ 61